PS4 Developer Specter on Pegasus / Trident / Chaitin Tech Exploit

Many may recall the Pegasus Exploits on iOS PDF that was making rounds last week, well... today PlayStation 4 developer @SpecterDev shared his research findings on the Pegasus / Trident exploit in relation to the PS4 Chaitin Tech Exploit.

You can read the entire article on Specter's Development Blog with a closing excerpt below to quote:

"For 1.76, all of these steps were achieved. For 3.55, essentially all that's been done is step one. Now if the kernel exploit in Pegasus wasn't used in the jailbreak for firmwares > 1.76, what was? We don't know.

It's currently being held private, and Chatin did not disclose the vulnerability to the public, only exclusively to Sony. If one thing is for sure though, it's that the kernel exploit was assuredly burned in 4.06. I am however, unsure if the Pegasus webkit exploit was fixed or used in the jailbreak, however it's more than likely fixed as well."

Here are some related Tweets from SpecterDev and others on Twitter as well:

Thanks to @defense, @kazookid0 and @mcmrc1 for the news in the PSXHAX Shoutbox!

 

[silerh7]

I feel honored for my tweet to make it when I know absolutely nothing about PS4 hacking

 

[HydrogenNGU]

I feel honored for my tweet to make it when I know absolutely nothing about PS4 hacking

You at least asked a question, and got a nice response for the community to know as well from Spec. You deserve to be shown on here sir

 

[games1]

Will it be possible to downgrade on ps4 type: 4.05 to 4.01 or 4.06 to 4.01?

It's tricky to be expecting because psn has many promotions and some cheap games!

 

[HydrogenNGU]

Will it be possible to downgrade on ps4 type: 4.05 to 4.01 or 4.06 to 4.01?

It's tricky to be expecting because psn has many promotions and some cheap games!

Like I said previously, it all depends on the PS4. If you have a Non-Retail/Devkit/TestKit, you can actually downgrade/upgrade whenever you feel like it. Only if they have released the Firmware Download for that specific one you're looking for.

If they have the MEGA link for 4.01/4.06/4.05 on PS4DevWiki/ other sites that provide the firmware downloads, then yes, you can downgrade depending on your console.

Here is my previous post on this:

I would recommend staying on a lower firmware depending if you have Non-Retail/TestKit Console. Depending on the console, you can downgrade/upgrade firmwares. 3.70 PS4 Pro DevKits can't do that at the moment, but staying on a lower firmware can mean a few things.

Since Kurt & Bad ChoicesZ's were modding GTAV from 1.76, there might be a nice release for those firmwares. That's just my opinion. If there is something that comes up big, you can always upgrade firmwares, again, depending on the console you have at the moment.

To check again the difference between Non-Retail / Retail, you can check Mr. Niato's Blog Post which you can find here: Retail vs Non-Retail.

To roughly quote SC58: "if you have a pro testkit and it comes on 3.70 you won't be able to downgrade lower then 3.70, it just like ps3 dech 2k,3k,4k etc

there is already different ps4 models of testkit released that people have that can't downgrade to some fw cause the model it is, but yes any testkit can downgrade or update."

 

[CelesteBlue]

but how is it possible to downgrade ?!??!

is it official or is there a trick ?

 

[HydrogenNGU]

but how is it possible to downgrade ?!??!

is it official or is there a trick ?

It is official, you just need a Normal PS4 TestKit, no PS4 Pro's can be downgraded at the moment.

 

[jimbo11]

i have just obtained 2 ps4s one on 1.01 the other on 2.51 both are for sale £1000 for 1.01 £600 for 2.51

i have just obtained 2 ps4s one on 1.01 the other on 2.51 both are for sale £1000 for 1.01 £600 for 2.51

they will both be on ebay this week

 

[games1]

The way is to wait until some good soul provides a video tutorial to teach how to perform with files! The ps4 have the option in hidden in it holding button appears hidden screen to perform procedure!

This realization can take a lot of people out of the heat so it's good to invest in the procedure! Just that PS3 was possible downgrade so it would not be strange not to have on the PS4 would be unfair ... kkkkk, thanks for the attention and good luck the team scene.

 

[Radio]

How can the non retails ps4 be downgraded? Is it a software thing? If it is, can we trick a normal ps4 into updating to a dev OS then downgrade (if that makes sense)?